“If instability comes too quick, you might suffer on that front.

“But Ferguson and myself are exceptions in the history of English football. Even before, when things were more stable, not many managers served for 18 or 26 years. It is a job, by definition which is not completely stable.”

“We have some countries like Brazil where clubs have five or six managers at the same club in the same season.

“But they have no club football any more because nobody will trust any young players when a manager knows if he loses one game, he is out.Nobody will educate any player, if he knows after one game he is out. You have to take care to define the policy of a club and be much stronger by sticking to it.